Changeset 93794 in vbox for trunk/src/VBox

Timestamp:

Feb 16, 2022 2:34:18 PM (3 years ago)

Author:

vboxsync

Message:

VMM/IEM: Working on adding missing C version of IEMAllAImpl.asm functions. bugref:9898

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllAImplC.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllAImplC.cpp

@@ -1410 +1410 @@
 
 # endif /* !defined(RT_ARCH_X86) || defined(IEM_WITHOUT_ASSEMBLY) */
-
+#endif
+
+IEM_DECL_IMPL_DEF(void, iemAImpl_cmpxchg16b_fallback,(PRTUINT128U pu128Dst, PRTUINT128U pu128RaxRdx,
+                                                      PRTUINT128U pu128RbxRcx, uint32_t *pEFlags))
+{
+    RTUINT128U u128Tmp = *pu128Dst;
+    if (   u128Tmp.s.Lo == pu128RaxRdx->s.Lo
+        && u128Tmp.s.Hi == pu128RaxRdx->s.Hi)
+    {
+        *pu128Dst = *pu128RbxRcx;
+        *pEFlags |= X86_EFL_ZF;
+    }
+    else
+    {
+        *pu128RaxRdx = u128Tmp;
+        *pEFlags &= ~X86_EFL_ZF;
+    }
+}
+
+#if !defined(RT_ARCH_AMD64) || defined(IEM_WITHOUT_ASSEMBLY)
 
 /*
@@ -2711 +2730 @@
 # endif /* !defined(RT_ARCH_X86) || defined(IEM_WITHOUT_ASSEMBLY) */
 
+
+
+# if defined(IEM_WITHOUT_ASSEMBLY)
+
+/*
+ * LFENCE, SFENCE & MFENCE.
+ */
+
+IEM_DECL_IMPL_DEF(void, iemAImpl_lfence,(void))
+{
+    ASMReadFence();
+}
+
+
+IEM_DECL_IMPL_DEF(void, iemAImpl_sfence,(void))
+{
+    ASMWriteFence();
+}
+
+
+IEM_DECL_IMPL_DEF(void, iemAImpl_mfence,(void))
+{
+    ASMMemoryFence();
+}
+
+# endif
+
 #endif /* !RT_ARCH_AMD64 || IEM_WITHOUT_ASSEMBLY */
 
@@ -2725 +2771 @@
     else
         *pfEFlags &= ~X86_EFL_ZF;
-}
-
-
-
-IEM_DECL_IMPL_DEF(void, iemAImpl_cmpxchg16b_fallback,(PRTUINT128U pu128Dst, PRTUINT128U pu128RaxRdx,
-                                                      PRTUINT128U pu128RbxRcx, uint32_t *pEFlags))
-{
-    RTUINT128U u128Tmp = *pu128Dst;
-    if (   u128Tmp.s.Lo == pu128RaxRdx->s.Lo
-        && u128Tmp.s.Hi == pu128RaxRdx->s.Hi)
-    {
-        *pu128Dst = *pu128RbxRcx;
-        *pEFlags |= X86_EFL_ZF;
-    }
-    else
-    {
-        *pu128RaxRdx = u128Tmp;
-        *pEFlags &= ~X86_EFL_ZF;
-    }
 }